Biomechanics/Bed Mobility/Assistive Devices Lab

Question 1

Definition of body mechanics

Answer 1

conserves energy
reduces stress and strain on muscles, joints, ligaments, soft tissue
promotes effective, efficient, safe movements
promotes/maintains proper body control and balance
promotes effective, efficient respiratory and cardiopulmonary function

Question 2

5 different types of lifting techniques?

Answer 2

Deep squat lift
Power lift
Single limb stance lift
Half-kneeling lift
Traditional lift

Question 3

Dependent or assisted mobility transfers

Answer 3

Supine to sidelying
Supine to sitting (2 options)
Sitting to supine
Lateral movement
Cranial-caudal movement

Question 4

Bed positioning

Answer 4

Supine
Side-lying
Sitting

Question 5

Transfers

Answer 5

Standing dependent pivot

• bilateral legs blocks
• single leg blocked

Standing assisted pivot transfer
To strong side
- block strong leg
- block weaker leg (PT decides strong leg is able to stabilize independently)

To weak side

• block strong leg (more therapeutic)
• block weak leg (ensures safety)

Question 6

Gait training

Answer 6

Gait belt
Environment
Education
People

Question 7

4 point gait (bilateral AD)

Answer 7

very stable
low energy expenditure
stimulates normal gait

involved AD
uninvolved limb
uninvolved AD
involved limb

Question 8

2 point gait (bilateral AD)

Answer 8

stable patten
low energy expenditure
stimulate normal gait
faster than 4 point

uninvolved AD & involved limb
involved AD & uninvolved limb

Question 9

modified 4/2 point gait (unilateral AD)

Answer 9

AD on opposite aide of involved limn

widens BOS and moves COG away from involved side

Question 10

3 point gait (NWB, walker/bilateral crutches)

Answer 10

advances walker/crutches
uninvolved limb

less stable
faster pace
high energy expenditure
UE strength required

Question 11

modified 3 point gait (PWB, walker/bilateral crutches)

Answer 11

Walker

• walker forward
• involved limb
• uninvolved limb

Crutches

• crutches forward
• involved limb
• uninvolved limb

more stable than 3 point
slower
less energy expenditure
less strength required